Attachment for woodworking-machines.



E. SODERGREN. ATTACHMENT POB WOODWORKING MAUHINBB.

APPLIOATIOH FILED HAY 13, 1908.

Patented Mar. 16, 1909. 8 BHBBTS-BHEET 1.

E. SODERGREN.

ATTACHMENT FOR WOODWORKING MACHINES.

APPLIOATIO! FILED KAY 13, 19084.

Patented Mar. 16, 1909.

B SHEETS-SHEET 2.

I N VEN TOR Eric /SocZczgnefz' WM@ l ATTOHNE YS E. SODERGREN.

ATTACHMENT FOR WOUDWOBKIG MAGEINES. APPLmA'noH rILxzn un 1s, 190e.

www

Tu: mmm: Perlas zu, WASHING-row. A7 c` Patented Mar. 16, 1909.

8 SHEETS-SHEET 3.

INVENTOI? WMF@ .4 TTUHNE YS E. SODERGRBN. ATTACHMENT FOB. WOODWOBKING MACHINES.

APIFLIOATIUN FILED KAY 13, 1908.

Patented Mar. 16, 1909. B SHEETS-SHEET 4.

E. SODERGREN.

ATTACHMENT FOB WOODWOBKING MACHINES. APPLIOATION FILED MAY 1a, 190s.

915,496. Patented Mar. 16, 1909.

B SHEETS-SHEET 5. F- 1 l Eric ,yaergrefz WW By m A TTOHNEYS A B. SODERGRJSIN'.l ATTACHMENT ron woonwoBxING MACHINES. AIPLIUATIOH FILED HAY 13, 190B.

91 5,496. Patented Mar. 16, 1909.

8 SHEETS-SHEET 6.

mmf 'l I IA "IH www Mlm] um,

77 r.' In

W//V-ESSES /NVENTH y MaJ/L Zzccodezyrefz A i d# Y n1: nomas nrrgns ro, wasmnnmu, n. c.

E. SODERGREN.

.ATTAUHMBNT ron WooDWoBKING MACHINES.

AYPLIOATIOH FILED HAY 13, 1908.

Patented Mar. 16, 1909.

8 SHEETS-SHEET 7.

Mmmm i1llillinl W/TNESSES A TTOHNEYS E. SODERGREN.

ATTACHMENT FOR WOODWGRKING MAUHINES.

APPLICATION FILED MAY 13, luna.

a SHEETS-snm a.

1H: Norms rzrzns ce.. vusnmcmu, o. c

ERIC SODERGREN, F NEW YORK, N. Y.

ATTACHMENT FOR WOODWORKING-MACHINES Specification of Letters Patent.

Patented March 16, 1909.

Application filed May 13, 1908. Serial No. 432,601.

T o all whom it may concern.'

Be it known that I, Emo SonEnGREN, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Attachment for Woodworking-Machines, of which the following is a full, clear, and exact description.

This invention is an improvement in attachments for wood working machines particularly variety melders having a revoluble vertical cutter, and has forits purpose to rovide an adjunct to such devices by w ich moldings, panels, etc. can be cut rapidly and with accuracy without requiring any particular skill on the part of the operator.

In carrying out my invention, I aim to dispense in so far as possible with the use of special gages for particular varieties of work, which gages are usually not to be found if again wanted, and provide in the place of such gages a compact and easily applied attachment having a wide field of usefulness. By this attachment I am able to rapidly and accurately plane or cut very thin or bent material without the exercise of more than ordinary care.

The invention further resides in certain special features of construction and combination of parts as will be hereinafter particularly described and claimed.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a perspective view of my imroved attachment applied to a wood worklng machine; Fig. 2 is a like view, looking from the opposite side; Fig. 3 is a perspective view of the attachment when rigged up to cut relatively wide material; Fig. 4 is a plan of the attachment., with the parts in a position as when used for cutting panels; Fig. 5 is a cross-section on the line 5-5 of Fig. 4; Fig. is a partial cross-section throu h the attachment adjacent to one of t 1e screwclamps; Fig. 7 is a perspective view of the body of the clamp shown in Fig. 6; Fig. 8 is a cross-section through the attachment adjacent to one of the screws which forms an adjustable connection between the base-board and oneI of thc leaves Fig. is a fragmentary sectional view adjacent to one of the springressed pins for normally forcing one of the caveshoutwardly from the base-board and taking up the lost motion between the screwthreads; Fig. 10 is a erspective view of the pin shown in Fig. 9; ig. 11 is an end view of the attachment as applied to the machine; Fig. 12 is a f ragmentaryside view of the same, showing one of the spring clamping-arms 3 Fig. 13 is a face view of the ratchet mechanism for controllin one of the spring-arms; Fig. 14 is a plan 0F an adjunct of the attachment as ordinarily used in working on very thin material; Fig. l5 is an inside edge view of the same; Fig. 16 is a perspective vlew of a detachable board used in elevating the edge or working face of one of the leaves of the attachment, as when cutting very Wide material, two of such boards being ordinarily employed, as illustrated in Fig. 3; Figs. 17 and 18 are perspective views of blocks which are detachably a plied to the working edges of the leaves o the attachment when an adjunct shown in Figs. 14 and l5 is in use; Fig. 19 is a partial longitudinal section through the block shown in Fig. 18, showing the springpressed dog Fig. ZOis a partial section through the machinetablc adj acent to one of theclamps as used for holding the adjunct shown in Fig. 14; Fig. 21 is a partial longitudinal section through the machine bed and the base-board of the attachment, showing one of the clamps by which the base-board is detachably and adjustably secured; Fig. 22 is an edge view of the clamp shown in Fig. 21; and Fig. 23 is a fragmentary plan of the attachment, on an enlarged scale, when used for cutting panelgl`he attachment embodies in its construction, a base-board Z5 having a longitudinal T-shaped slot 26 in its under face for receiving the corres ondingly-shaped head of a clamp 27, as sllfown in detail 1n Figs. 21 and This clamp is of U-form and has a jaw Z8 slid ably mounted on its intermediate portion and operated by a screw 29. Two of such clamps are used in adjustably securing the attachment to the table 3() of a wood working machine; such a machine for example as is provided with a rcvoluble cutter 31 carried on a vertically-arranged spindle and known as a variety melder.

The base-board 25 at one side is provided with two leaves 32 arranged at opposite sides of the transverse center and separated by an opening which receives the cutter 3l and partially extends into the base-board. The baseboard and each leaf are adjustably connected together by a pair of transversely-arranged screws 33, each screw being constructed as illustrated in Fig. 8, wherein it will be observed it is provided with a reduced portion at its end having a thread 34 of one hand, and a thread 35 of the opposite hand at the beginning of its enlarged portion, these threads respectively engaging nuts 36 and 37 carried by a leaf 32 and the base-board 25, the nut 36 and that portion of the screw pass` ing into the leaf being received in a horizontal slot 38, which admits of the leaf being adjusted longitudinally, and the nut 37 being rigid with the base-board 25. Each screw 33 has awinged head 33 i by which it is actuated, which head obviously requires very little turning in attaining the pro er adjustment of the leaf in view of the doub e thread on the screw. In addition to the pair of screws between the base-board and each leaf there is also provided at opposite sides of each of the inside screws, a in 39 slidable in the tubular casing 40, with t e spring 41 normally forcing the pin from the casing against the leaf 32. The tubular casing, which, as shown in Fig. 9,is received in an opening formed in the baseboard, is, together with said board, vertically slotted as indicated at 42 for receiving a feather 43 passing through the end or head of the pin, as shown in Fig. 10. These feathers prevent the passage of shavings between the base-board and the leaves, and are assisted in this matter bv plates 44 which are attached to the base-board and project a suitable distance beyond its edge over the top of the leaves. By keeping out the shavings between the base-board and leaves, no difficulty is experienced in adjusting the latter. Should, however, a few cuttings find their way in the slots or openings between these parts they will not interfere with the moving of the leaves into close contact with the baseboard since the adjacent bottom edges of each leaf and board are rabbeted as indicated at 45 in Fig. 8.

It will be observed from Fig. 8 that the nuts 36, in which the extremities of the screws 33 are threaded, loosely fit in metal channels, which admits of one screw of each leaf being threaded inwardly or outwardly more than the other screw to throw the leaf at an angle. When the leaves are adjusted to the required position, each is secured by a set-screw 46, which, as best shown in Figs. 8 and 11, is threaded horizontally through a bracket 47 attached to the leaf, and engages any one of a series of recesses formed in the upright flange of an angle-iron 48, the latter bein secured to a block 49, which in turn is rigid attached to the base-board 25. On each filock 49 is mounted a pedestal 50, of a spring camp, which embodies in its constructlon a cylindrical casing 51 integral or otherwise rigidly attached to the pedestal, said casing containin a s ring 52, one end of which is attache to t e casing, and the opposite end to a sleeve 53 ournaled in thc casing. Slidably splined in the sleeve 53 is a shaft 54 adapted to be secured in any position wiihin certain limits by a set-screw 55. The outer end of the shaft 54 is threaded for receiving a clampingaiut 56 having operating` arms, as shown, and also for receiving at the outside of the clamping-Init, a nut 57 having a diametrically slotted head in which is adjustably held by a set-screw 58, a clampingarm 59. The clamping-arm is constructed with a curved presser-foot 59, and is provided in the length of its shank with a number of apertures 60 for receiving a cotter or other like pin, which operates to revent its accidental slipping into the path of) the revoluble cutter.

Attached to the sleeve 53 is a ratchet-wheel 61, normally engaged by a pair of gravityoperated pawls 62 arranged at its opposite sides, as illustrated in Fig. 13. The construction of the engaging ends of these pawls is such that when they are thrown in, the spring 52 will give the shaft 54 a su'liicicnt turn to force the clam ping-arms firmly to the work after the nut 56 has been adjusted to lock the nut 57 to the shaft 54 at the proper point, one of the pawls 62 serving to prevent the spring from unwinding i dien the shaft is free to turn independently of the arm, and the other pawl operating to prevent the shaft from turning against the tension of the spring when the nut 56 is loosened.

Each leaf 32 is provided on its upper face with a pair of spaced stops 64 designed to contact with the edge of the guard plate 44 when the leaf is drawn to the limit of its inward movement at both ends, in which position the outer edges of the leaves are in exact alinement. The upper face of each leaf is further provided with a handle 65 by which it is shifted back and forth, and with spaced clamps 66, th'ese clamps embodying in their construction, as best shown in the detail views of Figs. 6 and 7, a longitudinally slotted bod f portion having a depending foot at one en( provided with a downwardly and outwardly inclined serrated edge; and the side walls of the body portion of the clamp at each side of the slot are of substantial height and each provided with a lug b arranged at diagonally opposite corners. On the top edges of the side walls of the body portion of the clamp, a screw 66c passes through the slot of the clamp and is threaded into a plate 66d iiXed to the leaf, the screw also passing through a washer 66c which is adapted to seat on the top edges of the side walls of the body portion of the clamp or be thrown around in alinement. therewith and pass into the slot, which admits of the displacement of the clamp without turning the screw any considerable extent. The plate 66d as a recess 66" at its front end for receiving the foot 66Et when the clamp is not in use, and is provided at its opposite and inner end with a knife-edge projection 66B for engaging therear end of the clamp body and preventing the same from slipping when the clamp is moved.

The clamps are used for holding several accessories or adjuncts to the attachment, such, for example, as illustrated in detail in Figs. 3, 16, 17, 18 and 19, the same being employed when special material is to4 be plane or cut, that shown in Figs. 3 and 16 comprising relatively wide abutment boards 67, each board having pockets 68 in its inner face for receiving the l'eet of the clamps, the

le bottom edges of these recesses being inclined to correspond to the inclination of said feet, wherebyT when the clamps are tightened they will tend to draw the board firmly against the outer edge of the leaf. Each board has a bracket 69 extending inwardly from its inner face, which is provided with a set-screw 70 designed to contact with the top of the baseboard when the abutment is m place, and operate to move the abutment board to and from an exact vertical position. These abutment boards are used in connection with the principal part of the attachment when working on relatively wide material. When cutting very thin molding or performing a like operation, guide-blocks 71 and 72 respectively, shown in Figs. 17 and 18, are secured to the edges of the leaves by the clamps. These guide-blocks have pockets 68 corresponding to the pockets 68, and the guideblock 72 which is placed in connection with the lealI from which the Work is fed, is constructed on its outer edge with a springpressed dog 73, the same beingI provided with teeth 74 on its outer face inclining in a direction to engage the material an d prevent it from being thrown back by the cutter. When the blocks 71 and 72 are in use, the device illrstrated in detail in Figs. 14 and 15 is also employed. This device comprises a bedplate 75 having a bar 76 at its inner side and arms 77 extending outwardly from its opposite side which are designed to be clamped to the machine table, for which purpose l make use of such U-shaped clamps as shown in Fig. 29, these clamps having opposed screws 78 which respectively engage the under lace of the machine tab e and the toprof the arms. The bar 76 is connected to a clamping bar 79 by screws or bolts S9, the latter having thumbmuts S1 by which the distance between the two bars is regulated, the bars being normally forced apart by a spring 82 interposed between them, which, when this particular device is in place, forces the clamping-bar firmly against the material to be cut, as illustrated in Figs. 1 and 2. The clamping-bar 79 is provided with a recess 83 for receiving the curved foot 59u of the clamping arm 59 in order that the arm can be used to hold down relatively thin material to the machine table in advance ol' the entter. F or likewise clamping such material at the opposite side of the cutter the bar 79 has a vertical movable clamp Sl actuated by the screw 85, the ol the clamp projecting slightly beyond the edge of the bar to engage with the material.

With the attachment thus constructed and arranged I have found in practice that l am enabled to accurately cut the thinnest molding or perform other like operations Without the exercise of more than ordinary care. In cutting paneling with the attachment I use a hoard S6, al: shown in Fig. 5, which has a semi-dove-tz'iil at its inner edge lfor receiving a strip S7, the latter beingr cut out slightly adjacent to the cutter in order that the Ywork may he brought close to the latter, and is further provided with lpockets in which the clamps 66 are adapte( to cngage. Should the beveling on the paneling be cut at a greater or less inclination than desired, the board S6 may he tilted by placing a strip under its inner or outer edge in order that it may be laterally inclined when clamped, as shown in dotted outline. rl`he clamps 66 are not only adapted to secure the devices herein enumerated and illustrated. but may be used for retaining any torni ol' gage or appliance used to properly direct or support t iematerial. The clamping-arms 59 wil ordinarily be in use at all times when the molding or other material to be eut is manually held directly against the edges ol' the adjustable leaves. 'lhese leaves when used without supplementary devices and at times with them, will he moved in :is close proximity to the cutter as possible in order that the work may have no length except the point which the cutter acts, which is unsupported. By adjusting the leaves out ol true parallelism,material which is naturally curved may be uniformly eut without exercising any undue late ral pressure vin forcingr the material to the cutter. "lhe independent adjustment oi' the leaves also admits ol' the supporting of the work at both sides ot the cutter' irresiiective oi the amount ol' `material which is removed hy the cuttingr operation.

lNhile I have shown and described the preferred construction and arrangement ol the several features oi the attrwlunent, l nevertheless recognize` that modihcations ol' the same may be made without departing from the nature of the invention as delined in the claims annexed.

Having thus described my invention, l claim as new and desire to secure by Letters Patent:

1. The combination ol a baseboard adapted to be secured to the table olE a wood wor ing machine, leaves adjnsiably ,con-

Cil

neeled lo the lmard at one side thereof for guiding the work to and from the cutter of the nniehine. guard-plates overlapping the edges of the leaves and the adjacent edge of the board, and swing-pressed pins arranged between the board and leaves, having approximately verlically-arranged feathers underneath the gn.n'dplate.

rl"he combination of a wood Working machine having a cutter, lneans laterally and longitudinally adjustable on the table of the niaehine at opposite sides of the cutter, guide nieml'xers having pockets, and clamps having feet adapted to project into the pockets of the members and secure them lo the edges of said means.

Il. The (.fonibination of a base board adapted 1o be secured to the table of a Wood working machine, leaves arranged at one. side of the base-board for guiding the Work to and from the cutter of the machine, screws vfor laterally adjusting the leaves relativeljto the base-hoard, and on which the leaves are lengthwise movable and means for loeking the leaves and the base-board together in adjusted position.

4. The combination of a base-board adapted to be secured to the table of a Wood Working machine, leaves arranged at one side of the base-board for guiding the Work to and from the cutter, having approximately hori` zontal slots longitudinally arranged, nuts fixed Io the lnise-board, nuts slidably mounted in the slots of the leaves, and screws each having a thread of one hand in engagement with the fixed nuts, and a thread of another hand in engagement with the slidable nuts.

5. The combination of a base-board adapted to be secured to the table of a Wood working machine, leaves adjustably connected with the base-board at one side thereof, elamps carried by the leaves, having depending feet provided with outwardly and downwardly inclined bottom edges, and snppleinentary devices adapted to be engaged h v the feet of said clamps and forced to the maehine table in Contaet with the leaves.

The eomhination of a base-board adapted to be secured lo the table of a Wood Working maehine, leaves adjustahly connected to the liase-board at one side thereof, longitudinally slotted clamps carried by the leaves, movable to the inside of and also beyond the margin thereof and having depending feet, and supplementary deviees adapted to be engaged b v the clamps and forced to the machine table and to the leaves.

T. The combination of a Wood Working nniehine, a hase board, leaves longitudinally and laterally adjustable on the table of the maehine lo and from the cutter thereof and operatively connected with the base board, guide-blocks adapted to be secured to the edges of said leaves, and a spring-pressed dog earried by one of the guide-blocks for engaging the Work as it is passed to the cutter.

8. The combination of a device adapted to be detachably secured to the table of a Wood working machine, means in connection with said device for guiding the work to the cutter of the machine, a shaft, a clam ing-arm connected transversely of said shag, and means inde endent of the clamping arm tending to revo ve the shaft in a direction to force the arm to the machine table adjacent to the first mentioned means.

9. The combination of a device adapted to be secured tothe table of a Woodworking machine, having means in connection therewith for guiding the Work to the cutter of said machine, and an arm longitudinally and laterally adjustable, and means independent of the arm tending to force it to the machine table.

10. The combination of a base-board adapted to be secured to the table of a Wood Working machine, a member in connection with the base-board for guiding the Work to and from thc cutter of the machine, a casing carried by the base-board having a sleeve j ournaled therein, a shaft slidably splined in the sleeve, a spring in the casing normally tending to turn the sleeve in one direction, and an arm carried by the shaft for clamping the work to the machine table adjacent to said member.

11. The combination of a base-board adapted to be secured to the table of a Wood working machine and having a member yin connection therewith for guiding the Work to the cutter of the machine, a longitudinally adjustable shaft carried by the base-board, means normally tending to turn the shaft in one direction, a nut threaded on one end of the shaft, a nut for locking the first mentioned nut to the shaft, and an arm in connection With the first mentioned nut for clamping the work to the table adjacent to said member.

12. The combination of a base-board having means for detachably and adjustably securing it to the table of a Wood Working machine, longitudinally adjustable leaves arranged at one side of the base-board having means in connection therewith for adjusting them laterally with respect to the baseboard, a s ring-pressed arm longitudinally and laterally adjustable for clamping the Work to the machine table adjacent to each leaf, and means for holding the arm above the Work against the tension of its spring.

13. The combination of a wood Working machine having a table and a cutter, a casing, a sleeve journaled in the casin a ratchet-Wheel fixed to the sleeve, a saft splined in the sleeve, a pawl normally engaged with the ratchet-wheel, an arm carried by the shaft transversely thereof, and means tending to revolve the shaft in a direction to force the arm to the table, whereby it is adapted to serve as a clamp for enga ing the work as it is fed to the cutter.

14. T e combination of a wood working machine having a cutter, a shaft slidably mounted, means tending to revolve the shaft in one direction, and an arm tor forcing the Work to the machine table as it is fed to the cutter, carried by said shaft and adjustable transversely thereof.

15. T he combination ot a wood working machine, a easing carried on the table of the machine, a sleeve journaled in the casing having a ratchet-wheel iixed thereto, means Within the casing normally tending to turn the sleeve in one direction, a sha-tt splined in said sleeve, a nut threaded on one end of the shaft and having a clamping-arm, a second nut for locking the iirst mentioned nut to the shaft, a pawl in engagement with the ratchet-wheel for limiting the revolution of the shaft when loosening the second nut, and a pawl in engagement with the ratchet- Wheel for limiting the revolution of the shaft in the opposite direction by the action of said means.

16. The combination of a wood working machine, an arm tor clamping the work to the table ot the machine, a shaft, a nut by which the clamping-arm is carried, threaded on the shaft, a nut for locking the first nientioned nut to the shaft, means normally tending to revolve the shaft in a direction. to force the arm to the table, and means for limiting the revolution of the shaft in the opposite direction when loosening the said second nut.

17. The combination of a wood working machine, an arm for securing the work to the table of the machine, a shaft by which the arm is carried, a spring normally tending to revolve the shaft in one direction, and means independent of the arm for varying the tension on the spring.

18. The combination of a base board having means lor detachably and adjustably securing it to the table of a wood working inachine, leaves in connection with the baseboard laterally and longitudinally adjustable. with respect thereto, guide-blocks adapted` to be detachably secured to the edges of the leaves, a spring-pressed dog arranged in the edge of one of the guide-blocks for engaging the work as it passes to spring-pressed arms carried by the baseboard for clamping the work to the machine table adjacent to the guide-blocks.

19. An attachment for wood working machines comprising a bed-plate adapted to be detachably secured to the machine table, a bar, springs arranged between the bed-plate and bar to move it laterally to the work, bolts carried by the bar and. extending from the bed-plate for moving the bar inwardly against the tension of the spring, a clamping the cutter, and.

member projecting beyond the working edge of said bar to force the work to the machine table, and a screw for vertically adjusting the plate.

20. The combination of a baseboard adapted to be detachably secured to thc table ol a wood working machine, leaves arranged at one side of said board l'or guiding the work to and from the cutter of the inaehine, and screws passing through the baseboard and extending into the leaves lor adjusting the leaves laterally, and on which tht` leaves are lengthwise slidable.

21. The combination ot a baseboard adapted to be detachably secured to the table of a wood Working machine, leaves arranged at one side of said board for guiding the work to and from the cutter of the niachine, screws passing through the baseboard and extending into the leaves lor adjusting the leaves laterally, and on which the leaves are lengthwis slidable. and means independent of said screws for locking the leaves against endwise movement.

22. The combination of a baseboard adapted to be detachably secured to the table of a wood working machine, ol' leaves arranged at one side of said board for guiding the work to and from the cutter ol the machine and adjustable lmigitudinally with respect to the board, and means passing transversely through the board and extending into the leaves for adjusting the leaves laterally to and from the board.

'33. The combination of a` basebozu'd adapted to be detachably secured to the table of a wood working machine, of leaves arranged at one side of said board for guiding the work to and from the cutter ol' the niael'iine, With the upper faces ot the leaves lying in the same horizont al plane with the upper face of the board, und screws extending erosswise through the board and having a threaded connection with the leaves.

24. The combination ol a lmseboard adapted to be detachahly secured to the table of a wood working machine, leaves laterally and longitudinally adjustable at' one side of the board., pedestals rigidly attached to the board, having casings at the upper ends thereof, shafts lengthwise adjustable in said easings, springs within the casings tending to revolve the shafts in opposite directions, and arms for clamping the work to the machine table adjacent to said l leaves and arranged in opposed position.

l s l 25. The combination of a base-board adapted to be detachably secured to the table of a wood-working machine, leaves arranged at one side ot' the base-board, nuts slidable longitudinally in the leaves, and screws passing through the base-board having a threaded engagement therewith ot one hand and a threaded engagement in said nuts of the opposite hand.

26. The combination o'r' a base-board f In testimony whereof I have signed my ada ted to be detaohahly secured to the name to this specification in the presence of IU tab e of a Wood workin machine, leaves two subscribing Witnesses. laterally and longtudina ly adjustable at 5 one side of the board, and e amps carried by ERIC SODERGREN the leaves having feet overhan infJr the edges Witnesses: thereof, with the bottoms of t e eet inchn- W. W. HOLT,

ing downwardly and outwardly. JOHN P. DAVIS. 

